August 2018 2 47 Report
Kurangkan -x²-y²+10x-y-xy+5 dengan -3x²-3y²+7x+2y-xy+1
Tolong kasih caranya ya! Aku sih udah jawab,tapi masih bingung.
Kalo jawaban aku 2x²+2y²+3x-y-xy²+4 ituu.. bener atau ngga?

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